ITU-T M.530-1989 Readjustment to the Nominal Value of an International Group, Supergroup, Etc., Link - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
Before any adjustment is made to a link it must first be ensured that each regulated line section or higher-order link over which the link concerned is routed is correctly adjusted and that the level of the reference
pilot at the transmitting end is corr
ITU-T M.530-1989 history
1989ITU-T M.530-1989 Readjustment to the Nominal Value of an International Group, Supergroup, Etc., Link - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp